What does 401 stand for?

What does 401 mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: 401.

We've found a total of 2 definitions for 401:

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401

Rhode Island

Regional » US Phone Area Codes

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401

Unauthorized

Internet » HTTP Error Codes

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"401." Abbreviations.com. STANDS4 LLC, 2015. Web. 25 May 2015. <http://www.abbreviations.com/401>.